| article html file updated | 6 February 2020 02:52 CET | Update | https://www.mdpi.com/2073-4468/2/3/415 |
| article html file updated | 8 May 2019 03:33 CEST | Update | - |
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| article html file updated | 17 June 2015 10:38 CEST | Update | - |
| article html file updated | 24 November 2014 10:50 CET | Original file | - |
| article xml file uploaded | 24 November 2014 10:50 CET | Original file | https://www.mdpi.com/2073-4468/2/3/415/xml |
| article pdf uploaded. | 27 June 2013 12:26 CEST | Version of Record | https://www.mdpi.com/2073-4468/2/3/415/pdf |
